UGC NET Computer Science December 2019 | Question 133

Question 133

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According to the ISO-9126 Standard Quality Model. match the attributes given in List-I with their definitions in List-II :

List I	List II
a. Functionality	i. Relationship between level of performance and amount of resources
b. Reliability	ii. Characteristics related with achievement of purpose
c. Efficiency	iii. Effort needed to make for improvement
d. Maintainability	iv. Capability of software to maintain

Choose the correct option from the ones given below :

1. 1. (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)
2. 2. (a)-(ii), (b)-(i), (c)-(iv), (d)-(iii)
3. 3. (a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)
4. 4. (a)-(i), (b)-(ii), (c)-(iv), (d)-(iii)

Answer : 3. (a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)

Explanation Question 133

6 main quality characteristics for ISO-9126 Standard Quality Model:

1. Functionality→ Characteristics related with achievement of purpose
2. Reliability → Capability of software to maintain performance of software
3. Efficiency → Relationship between level of performance and amount of resources
4. Maintainability → Effort needed to make for improvement
5. Usability → Usability only exists with regard to functionality and refers to the ease of use for a given function.
6. Portability → This characteristic refers to how well the software can adapt to changes in its environment or with its requirements.

Reference : ISO/IEC 9126

So, option 3 is correct answer

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